JP2019193392A - Electric power supply system and method for connecting additional electric power device of electric power supply system - Google Patents

Abstract

To provide an electric power supply system capable of improving the workability of installation when an additional electric power device such as a charging device is installed outdoors.SOLUTION: An electric power supply system includes a power conditioner PC that is installed in a house H and performs DC/AC power conversion and mutually supplies power to a solar power generation device 10 and a distribution board 20 as electric power devices inside and outside the house H, in which resin buried pipes 100, 200 having flexibility are buried in the ground between the power conditioner PC and an installation predicted position that can be additionally installed in the future and where a power storage device 40 and a charging device 50 are predicted to be installed as additional electric power devices that can supply power to the power conditioner PC.SELECTED DRAWING: Figure 1

Description

  The present disclosure relates to a power supply system and a method for connecting an additional power device of the power supply system.

DESCRIPTION OF RELATED ART Conventionally, the charging system provided with the charging device with respect to the vehicle provided with the storage battery is known (for example, refer patent document 1).
This Patent Document 1 describes a charging system that is incorporated in an energy management system that comprehensively manages energy supply and demand, such as electric power for the entire house, and charges an automobile that runs on electric energy.

  In this charging system, a charging device provided in the vicinity of an outdoor parking space is connected to a control device provided in a house and a distribution board as a power device on the power source side. And in the connection of a charging device and a control apparatus, the joint box is provided in the outer wall of a house, and the joint box and the control apparatus are connected by the connection line inserted in CD pipe | tube pipe | tube-lined in the house. Moreover, the joint box and the charging device are connected by a connection line routed in the underground pipe buried in the ground.

  Furthermore, in the above-described conventional technology, a CD tube is routed in advance between the control device in the house and the outer wall. And when you purchase a new car that can be recharged after construction of a house, or when you purchase a new car that can be recharged, connect the connection line according to the charging method of the car in the already installed CD tube. It only has to be routed.

Japanese Patent No. 6017715

  However, in the above-described conventional technology, when a new power device such as a charging device is newly installed outdoors, it is buried between the existing equipment on the housing side such as a joint box and the outdoor charging device to be additionally installed. Excavation work is required to bury pipes and connecting lines. In this case, it is necessary to dig almost the entire length between the housing-side equipment such as the joint box and the electric power equipment such as the charging device, and the construction becomes large. In addition, after building a house, it may not be possible to secure a space for using heavy machinery for excavation. In such a case, the excavation work is manual and time-consuming.

  An object of the power supply system of the present disclosure is to provide a power supply system capable of improving installation workability when an additional power device such as a charging device is installed outdoors.

In order to achieve the above object, the power supply system of the present disclosure includes:
A power supply system provided with a power conditioner that is provided in a building and performs DC / AC power conversion to mutually supply power to power equipment inside and outside the building,
There was flexibility between the power conditioner and a predicted installation position where additional power equipment that can be additionally installed in the future and can supply power to the power conditioner is predicted. Plastic buried pipes are buried in the ground.
In addition, a method for connecting an additional power device of the power supply system of the present disclosure is as follows.
Connecting each of the buried boxes with an additional conduit having a call wire routed therein;
Connecting the nominal line of the buried pipe and the nominal line of the additional conduit;
Connect the connection line that electrically connects the power conditioner and the additional power device to the connected call line, pull out the call line from one of the additional conduits, and add both the connection lines. Wiring the entire length of the conduit tube and the buried tube;
Electrically connecting the power conditioner and the additional power device by the connection line;
Have

In the present invention, when an additional power device such as a charging device or a power storage device is installed after the building is constructed and connected to the power conditioner, a connection line connecting the additional power device and the power conditioner is embedded in advance. Route through the tube.
Therefore, at the time of construction, even if excavation is necessary, only the both ends of the buried pipe are excavated, and it is not necessary to excavate over the entire wiring range of the connection line, so that the installation workability is excellent. Moreover, since the buried pipes 100 and 200 have flexibility, even when the pipe is bent, the pipes 100 and 200 can be easily piped without interposing a joint or the like, and have rust prevention performance. Also excellent.

1 is an overall system diagram schematically showing an overall configuration of a power control apparatus including a power supply system according to a first embodiment of the present invention. It is sectional drawing which shows the state before installation of the additional electric power apparatus of the electric power supply system of Embodiment 1. FIG. It is sectional drawing which shows the state after installation of the additional electric power apparatus of the electric power supply system of Embodiment 1. FIG.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
(Embodiment 1)
First, an overall configuration of a power control system to which the power supply system of the first embodiment is applied will be described with reference to FIG. This power control system is applied to a house H as a building.

  In this house H, an energy management system (hereinafter referred to as HEMS) that comprehensively manages the energy supply and demand of the entire house H is introduced.

In the figure, as an example of the HEMS, a solar power generation device 10, a power conditioner PC, and a control device CL are shown.
The solar power generation device 10 supplies the generated DC power to the power conditioner PC. The power conditioner PC can convert the generated DC power into AC power and supply the power to the power load group 30 connected to the distribution board 20 via the distribution board 20 inside the house H. It has become.

  The distribution board 20 is connected to a power grid E such as a power plant of a power company or a cogeneration facility installed in each region. The power load group 30 is a plurality of power loads that operate by consuming electric power, and includes, for example, a hot water supply device, an air conditioner, a lighting device, and a home appliance such as a refrigerator and a television.

  The power conditioner PC is capable of mutual conversion between DC power and AC power as described above. In addition, the power conditioner PC is not installed in the illustrated house H, but includes a power storage device 40 and a charging device 50 as additional power devices that can be connected in the future.

  The power storage device 40 is connected to the power conditioner PC, can charge the power generated by the solar power generation device 10 and the power supplied from the grid power network E, and the charged power can be supplied via the power conditioner PC. It can be supplied from the distribution board 20 to the power load group 30.

  The charging device 50 is connected to a power conditioner PC and can be connected to a vehicle MV (for example, an electric vehicle or a plug-in hybrid vehicle) provided with a storage battery (not shown). And the charging device 50 charges the storage battery (not shown) of the motor vehicle MV with the electric power supplied from the solar power generation device 10, the electrical storage device 40, or the system power grid E. Moreover, the charging device 50 can supply the electric power of the storage battery (not shown) of the automobile MV to the power load group 30 via the power conditioner PC.

  The control device CL can control the exchange of power via the power conditioner PC. For example, the control device CL can supply power to the power load group 30 based on the charge system, the weather forecast, and the power consumption status of the grid power network E. Controls the supply (power sale) to the grid power network E. For example, it is selected whether the power supply to the power load group 30 is performed by the solar power generation apparatus 10 or the grid power network E, or a time zone for supplying (selling power) to the grid power network E is set. can do. Furthermore, the control device CL can also control the operating state of the air conditioner and the heat storage time zone of the hot water supply device based on the weather forecast for the next day.

  In addition, when the power storage device 40 and the charging device 50 are installed, the control device CL can control charging / discharging of the power storage device 40 and charging of a storage battery (not shown) of the automobile MV by the charging device 50. . For example, when charging the storage battery (not shown) of the power storage device 40 or the automobile MV, the control device CL, if necessary, the power generated by the solar power generation device 10, the relatively inexpensive midnight power, the relative Therefore, charging can be performed with priority in the order of expensive daytime power.

(Buried pipe)
Next, the buried pipes 100 and 200 will be described.
The buried pipes 100 and 200 are buried beforehand in anticipation of installing them in the future when the power storage device 40 and the charging device 50 are not installed at the time of construction of the house H.

  FIG. 1 shows an example in which both the power storage device 40 and the charging device 50 are not installed. The buried pipe 100 is for installing the power storage device 40, and the buried pipe 200 is for installing the charging device 50. Is.

  The buried pipes 100, 200 are cylindrical bellows-like pipes made of rigid resin and having flexibility, and for example, PF pipes (Plastic Flexible conduits) can be used. And as shown in FIG. 2, the embedding boxes 110, 120, 210, and 220 are connected to both ends of the embedding pipes 100 and 200.

  The buried boxes 110, 120, 210, and 220 are made of synthetic resin and have a bottomed cylindrical or rectangular box shape, and as shown in FIG. 2, open / close lids 111, 121, 211 and 221 are provided.

  Therefore, both ends of the buried pipes 100 and 200 are sealed by the buried boxes 110, 120, 210, and 220 and can be opened to the outside by the lids 111, 121, 211, and 221.

  Further, the call lines 130 and 230 are inserted into the buried pipes 100 and 200, respectively, and both ends thereof are disposed so as to protrude from the inside of the buried pipes 100 and 200 into the buried boxes 110, 120, 210, and 220. .

The buried pipes 100 and 200 are buried in the underground UG having a predetermined depth from the ground surface ES over the entire length.
On the other hand, the burial boxes 110, 120, 210, and 220 are also buried in the underground UG. The burial state is such that the lids 111, 121, 211, and 221 are arranged on the same surface as the ground surface ES. It is buried without protruding upward from the ground surface ES. That is, by exposing the lids 111, 121, 211, and 221 from the ground surface ES, the embedded positions of the embedded boxes 110, 120, 210, and 220, that is, the positions of both ends of the embedded pipes 100 and 200 can be clarified. Furthermore, by not letting the lids 111, 121, 211, and 221 protrude from the ground surface ES, the presence of the lids 111, 121, 211, and 221 does not get in the way, and a person does not scratch their feet.

  1 and 2, the buried pipe 100 (200) has one buried box 110 (210) disposed in the vicinity of the power conditioner PC, and the other buried box 120 (220). It is arranged in the vicinity of the predicted installation position indicated by the dotted lines of power storage device 40 and charging device 50 that are additional power devices.

  Specifically, it is efficient to install the power storage device 40 in the vicinity of the power conditioner PC. As shown in FIG. 1, the power storage device 40 is in the vicinity of the power conditioner PC and the vicinity of the outer wall W of the house H. This is the predicted installation position. Therefore, in the buried pipe 100 and the buried boxes 110 and 120 for installing the power storage device 40, one buried box 110 is disposed in the vicinity of the power conditioner PC, and the other buried box 120 is indicated by a dotted line. It arrange | positions in the vicinity of the installation estimated position of the apparatus 40. FIG. In addition, since the buried pipe 100 has flexibility, as shown in the drawing, the buried pipe 100 can be routed by bending the wiring direction at a substantially right angle.

  Moreover, it is estimated that the charging device 50 is installed beside the parking space P as shown in FIG. Therefore, one burying box 210 is arranged in the vicinity of the power conditioner PC, and the other burying box 220 is arranged in the vicinity of the estimated installation position of the charging device 50 indicated by a dotted line in the vicinity of the parking space P.

  The excavation work for embedding the buried pipes 100 and 200 and the buried boxes 110, 120, 210, and 220 is performed simultaneously with the excavation work such as the construction of the foundation structure during the construction work of the house H. Thus, since it is before construction of the house H, a heavy machine etc. can be used as needed at the time of excavation.

(When installing additional power equipment)
Next, a case will be described in which additional power devices such as the power storage device 40 and the charging device 50 that are not installed in the house H are additionally installed after the resident moves in (for example, several years after moving in).

  FIG. 3 shows a state in which the power storage device 40 and the charging device 50 are additionally installed at the predicted installation positions, respectively. The power conditioner PC, the power storage device 40 and the charging device 50 are routed in the buried pipes 100 and 200. Electrical connection is made via the connection line 500.

In connection with this connection line 500, one buried box 110 (210) and the power conditioner PC are connected by the newly added additional conduit 300. Further, the other buried box 120′220) and the additional power device (the power storage device 40 or the charging device 50) are connected by the additional conduit 400. As a result, the entire length of the connection line 500 is covered and protected by the buried pipes 100 and 200 and the additional conduit pipes 300 and 400.
As the additional conduits 300 and 400, for example, PF tubes made of resin and having flexibility, like the embedded tubes 100 and 200, are used.

(How to connect additional power equipment)
Below, the procedure of a connection work, ie, the connection method of an additional electric power apparatus, is demonstrated.
First, excavation work around the buried boxes 110 (210) and 120 (220) is performed. As a result, the side surfaces of the embedding boxes 110 (210) and 120 (220) are exposed.

  Next, the additional conduits 300 and 400 are connected to the buried boxes 110 (210) and 120 (220). In addition, as the additional electric conduits 300 and 400, those in which call lines (not shown) are inserted in advance are used.

As the additional conduits 300 and 400 are connected, a nominal line (not shown) inserted into the additional conduits 300 and 400 and a nominal line 130 (230) inserted into the buried tube 100 (200) are connected. To do. At this time, the lids 111 and 121 (211 and 221) of the embedding boxes 110 (210) and 120 (220) can be opened and pulled out from the nominal line 130 (230) inserted into the embedding pipe 100 (200). The operation can be easily performed.
And by the said operation | work, while burying box 110 (210), 120 (220) is interposed in the middle, while the buried pipe 100 (200) and the additional electric wire pipes 300 and 400 form the continuous pipe line, , A single call line is routed in the pipeline.

  Next, the connection line 500 is connected to one call line including the call line 130 (230). In addition to the connection line 500, a connection line (not shown) that exchanges control signals with the control device CL may be connected.

  And by pulling out the edge part of the side which has not connected the connection line 500 among the both ends of one call line including the call line 130 (230) from the additional electric wire pipe 300 (400), the buried pipe 100 ( 200) and the additional electric conduits 300 and 400, the connecting line 500 is routed inside thereof.

Thereafter, both ends of the connection line 500 are connected to the power conditioner PC and the additional power device (the power storage device 40 and the charging device 50), and then the end portions of the additional conduits 300 and 400 are connected to the power conditioner PC and the additional power device. It fixes to the housing | casing of (the electrical storage apparatus 40 or the charging device 50).
In addition, after the additional conduits 300 and 400 are connected to the buried boxes 110 (210) and 120 (220), the excavation sites around the buried boxes 110 (210) and 120 (220) are backfilled at any timing. .
The connection work is thus completed.

(Effect of Embodiment 1)
The effects of the first embodiment of the present disclosure are listed below.
(1) The power supply system of Embodiment 1 is
A power supply system provided with a power conditioner PC that is provided in the house H and that performs DC-AC power conversion and supplies power to the solar power generation apparatus 10 and the distribution board 20 as power equipment inside and outside the house H. Because
The power conditioner PC and a predicted installation position where the power storage device 40 and the charging device 50 can be installed as additional power equipment that can be additionally installed in the future and can supply power to the power conditioner PC. In the middle, resin-made buried pipes 100 and 200 having flexibility are buried in the ground.
Therefore, when installing the additional power device (the power storage device 40, the charging device 50), when burying the connection line 500 connecting the power conditioner PC and the additional power device in the underground UG, over the entire length thereof. There is no need for excavation, and installation workability is excellent. Moreover, when the buried pipes 100 and 200 are piped, even if the path is bent, the pipes can be easily piped without interposing a joint or the like, and excellent in rust prevention performance.

(2) The power supply system of Embodiment 1 is
Call lines 130 and 230 are routed inside the buried pipes 100 and 200.
Therefore, the operation of routing the connecting line 500 along the inside of the buried pipes 100 and 200 is easy, and the installation operation is excellent.

(3) The power supply system of Embodiment 1 is
Both ends of the buried pipes 100, 200 are connected to buried boxes 110, 120, 210, 220 formed in a box shape and buried in the ground,
Buried boxes 110, 120, 210, and 220 have lids 111, 121, 211, and 221, and the lids 111, 121, 211, and 221 are exposed at the height of the ground surface ES.
Therefore, it is possible to prevent water and soil from entering the buried pipes 100 and 200. In addition, the extension work of the buried pipes 100 and 200 when the additional power devices (the power storage device 40 and the charging device 50) are additionally installed is also facilitated. That is, the extending operation of the resin pipe through the burying boxes 110, 120, 210, and 220 is generally performed, and since it can be extended by such a general operation, the workability is excellent.
Further, when the additional power device is additionally installed, the positions of the end portions of the buried pipes 100 and 200 can be easily and accurately known by the lids 111, 121, 211, and 221.
Moreover, compared with the case where the edge part of the buried pipes 100 and 200 and the buried boxes 110, 120, 210, and 220 are protruded on the ground surface ES, it is possible to prevent these damages and the residents from going to them.
In addition, by opening the lids 111, 121, 211, and 221, the embedded pipes 100, 200 can be easily accessed, and compared with those without the lids 111, 121, 211, 221, The wiring work and the connecting work of the additional conduit 300 (400) are easy.

(A) The connection method of the additional power equipment of the power supply system of Embodiment 1 is as follows:
Connecting the additional conduits 300, 400, each having a call wire, to each of the buried boxes 110, 120, 210, 220;
Connecting the nominal lines 130 and 230 of the buried pipes 100 and 200 and the nominal lines of the additional conduits 300 and 400;
Connect the connecting line 500 that electrically connects the power conditioner PC and the additional power device to the connected nominal line, pull out the nominal line from one of the additional conduits 300 and 400, and connect the connecting line 500 to both additional cables. Routing the entire length of the pipes 300, 400 and the buried pipe 100 (200);
Electrically connecting the power conditioner PC and the additional power device by the connection line 500;
Have
Therefore, the connection line 500 can be easily routed and the power conditioner PC and the additional power device can be electrically connected. Moreover, since the part exposed from the ground surface ES becomes the newly installed additional conduits 300 and 400, using the buried pipe 100 (200) buried in advance in the ground, the power conditioner PC and the additional power device are connected. Excellent appearance compared to the connection.

  The embodiment of the power supply system according to the present disclosure has been described in detail with reference to the drawings. However, the specific configuration is not limited to this embodiment, and is designed so as not to depart from the gist of the present invention. Modifications are included in the present invention.

For example, in the embodiment, a house is given as an example of a building to which the power supply system of the present disclosure is applied. However, the building can be applied to a building other than a house.
Moreover, in embodiment, although the solar power generation device 10, the distribution board 20, the electrical storage apparatus 40, and the charging device 50 were shown as an electric power apparatus, if it is an apparatus connected to power conditioner PC, it will not be limited to these. For example, a power generation device that generates power from something other than sunlight, such as wind power or hydraulic power, may be connected.

In the embodiment, the example in which the buried boxes 110, 120, 210, and 220 are connected to both ends of the buried pipes 100 and 200 is shown, but the buried boxes 110, 120, 210, and 220 may not be connected. For example, if the buried pipes 100 and 200 are buried, the excavation work can be reduced and workability can be reduced even if both ends thereof are closed with a member such as a plug, and marks indicating the positions of both ends of the buried pipe are provided on the ground surface ES. Can be improved.
Moreover, although the example which connects the additional conduit 300,400 to the burying box 110,120,210,220 was shown, it is not limited to this. For example, the connection line 500 drawn out from the buried box 110, 120, 210, 220 may be directly connected to the power conditioner PC and the additional power device. For example, when the lids 111, 1211, 211, and 221 are arranged at positions very close to the power conditioner PC and the additional power device, the connection line 500 is pulled out from the lids 111, 1211, 211, and 221 and connected. Is also possible. In this case, the connection line 500 can be drawn into the buried pipes 100 and 200 using only the nominal line 130.

10: Solar power generation device (power equipment)
20: Distribution board (power equipment)
40: Power storage device (additional power equipment)
50: Charging device (additional power equipment)
100: buried pipe 110: buried box 120: buried box 130: call line 200: buried pipe 210: buried box 220: buried box 230: call line 300: additional conduit 400: additional conduit 500: connection line CL: control device ES: Ground surface H: Housing (building)
UG: Underground

Claims (4)

A power supply system provided with a power conditioner that is provided in a building and performs DC / AC power conversion to mutually supply power to power equipment inside and outside the building,
There was flexibility between the power conditioner and a predicted installation position where additional power equipment that can be additionally installed in the future and can supply power to the power conditioner is predicted. A power supply system in which resin buried pipes are buried underground. The power supply system according to claim 1,
A power supply system in which a call wire is routed inside the buried pipe. The power supply system according to claim 1 or 2,
Both ends of the buried pipe are connected to a buried box formed in a box shape and buried in the ground,
The buried box has a lid on an upper portion thereof, and the lid is exposed at a height of the ground surface. It is a connection method of the additional electric power equipment of the electric power supply system according to claim 3,
Connecting each of the buried boxes with an additional conduit having a call wire routed therein;
Connecting the nominal line of the buried pipe and the nominal line of the additional conduit;
Connect the connection line that electrically connects the power conditioner and the additional power device to the connected call line, pull out the call line from one of the additional conduits, and add both the connection lines. Wiring the entire length of the conduit tube and the buried tube;
Electrically connecting the power conditioner and the additional power device by the connection line;
A method of connecting an additional power device of a power supply system having